Issue
Type locality: Monsembe (Haut Congo).
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
; آب شيرين نزديك كف زي. Tropical; 26°C - 28°C (Ref. 1672)
Africa: Congo River basin in Cameroon, Democratic Republic of the Congo (Ref. 3188, Angola (Ref. 3188, 120641) and Republic of Congo (Ref. 45477). Also reported from the Lake Rukwa drainage (Ref. 27292) and Lake Tanganyika basin (Ref. 4537, 36901, 54847).
Size / Weight / سن
بلوغ: Lm ? range ? - ? cm
Max length : 60.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 3188)
خارهاي باله پشتي (کل) : 9 - 11; خارهاي باله مخرجي: 14 - 15. Subcylindrical body (Ref. 27292, Ref. 36901). Upper and lower jaw of equal length (Ref. 36901, Ref. 42907). Number of dorsal finlets: 9-11 (Ref. 42908, Ref. 51884). Dorsal fin origin well behind pectoral fin (Ref. 4967, Ref. 42873). Ganoid scales (Ref. 27292, Ref. 42904): 58-65 lateral line scales, 38-44 scales around body, 22-27 predorsal scales (Ref. 2970, Ref. 11970, Ref. 42907, Ref. 42908). Dorsal side grey-brown colored, marbled with clear whitish spots (Ref. 11970), the belly is white to yellowish (Ref. 27292). Head finely reticulated (Ref. 42873, Ref. 42901). Fins with white spots alternating with dark spots, forming a continuous bar (Ref. 11970).
Body shape (shape guide): elongated; Cross section: circular.
Facultative air-breathing (Ref. 126274); Inhabits calm waters of swamps and rivers (Ref. 11970). It feeds on worms and insect larvae when young, but takes larger food, mainly fish, when adult (Ref. 27292). It mainly hunts at night (Ref. 27292). In general they are more or less solitary fish and do not form schools (Ref. 27292).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Male starts with the courtship and is the active partner (Ref. 1672). The male makes from the anal fin a sort of cup and the female lays the eggs in this cup (Ref. 1672). The male then spreads the eggs so that they attach, e.g., to plants.
Gosse, J.-P., 1984. Polypteridae. p. 18-29. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). Volume I. ORSTOM, Paris and MRAC, Tervuren. 410 p. (Ref. 3188)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-1)
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: از بی علاقه گی; آكواريوم: آکواریوم عمومی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Phylogenetic diversity index (مرجع
82804): PD
50 = 0.5003 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00197 - 0.01063), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (مرجع
69278): 3.7 ±0.60 se; based on food items.
جهندگی (مرجع
120179): پايين ، كم, كمينه زمان لازم براي دو برابر شدن جمعيت 5/4 – 14 سال (Fec=200-300; tmax likely >= 20).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
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